{
 "metric": "spf-policy",
 "segment": "gb-micro",
 "anchor": "company",
 "label": "UK micro companies",
 "population": "UK micro companies",
 "states": [
  "hardfail",
  "softfail",
  "neutral",
  "permissive_all",
  "too_many_lookups",
  "absent"
 ],
 "quiet_failure_states": [
  "softfail",
  "neutral",
  "permissive_all",
  "too_many_lookups",
  "absent"
 ],
 "measurement": "Tier 0. TXT at the apex; find `v=spf1`, read the `all` qualifier, count direct lookups. Denominator: `has_mx`.",
 "why_it_matters": "`~all` is the SPF equivalent of `p=none` and overwhelmingly the most common configuration — it asks receivers to accept-but-mark, so spoofed mail still arrives. `+all` authorises the entire internet to send as you. Exceeding the 10-lookup limit makes the record fail *permanently and silently*, because receivers abort evaluation.",
 "limits": "The lookup count is **non-recursive** (it does not expand `include:`), so it is a lower bound and catches only egregiously over-limit records.",
 "data_tier": "dns",
 "population_predicate": "has_mx",
 "entity_type": "domain",
 "kind": "failure",
 "latest": {
  "day": "2026-08-10",
  "n": 231,
  "qf_pct": 67.53,
  "ci": [
   61.25,
   73.24
  ],
  "dist": {
   "hardfail": 32.47,
   "softfail": 45.45,
   "neutral": 3.03,
   "permissive_all": 0,
   "too_many_lookups": 0,
   "absent": 19.05
  },
  "snapshot": "uk-companies-house-per600-seed20260728"
 },
 "series": [
  {
   "day": "2026-08-01",
   "n": 102,
   "qf_pct": 65.69,
   "ci": [
    56.05,
    74.18
   ],
   "dist": {
    "hardfail": 34.31,
    "softfail": 46.08,
    "neutral": 2.94,
    "permissive_all": 0,
    "too_many_lookups": 0,
    "absent": 16.67
   },
   "snapshot": "uk-companies-house-per300-seed20260728"
  },
  {
   "day": "2026-08-05",
   "n": 231,
   "qf_pct": 67.97,
   "ci": [
    61.7,
    73.65
   ],
   "dist": {
    "hardfail": 32.03,
    "softfail": 45.89,
    "neutral": 3.03,
    "permissive_all": 0,
    "too_many_lookups": 0,
    "absent": 19.05
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  },
  {
   "day": "2026-08-10",
   "n": 231,
   "qf_pct": 67.53,
   "ci": [
    61.25,
    73.24
   ],
   "dist": {
    "hardfail": 32.47,
    "softfail": 45.45,
    "neutral": 3.03,
    "permissive_all": 0,
    "too_many_lookups": 0,
    "absent": 19.05
   },
   "snapshot": "uk-companies-house-per600-seed20260728"
  }
 ],
 "license": "CC BY 4.0",
 "source": "https://quietfailures.com/datasets/spf-policy/gb-micro"
}